stm32H753 spi6 BDMA interrupt

[togsin]

hi ALL

I use stm32h753.

1) SPI1 , DMA , DMA1_Stream0 

2) HAL_SPI_Transmit_DMA(&hspi1, gAudioTxBuffer, VS1063_DMA_TX_LEN);

3) void SPI1_IRQHandler(void) interrrupt 

==> Very well

but

1) SPI6 , BDMA , BDMA_Channel0

2) HAL_SPI_Transmit_DMA(&hspi6, gAudioTxBuffer, VS1063_DMA_TX_LEN);

3) void SPI6_IRQHandler(void) not interrrupt 

=> not interrupt

I don't know why spi6 doesn't get interrupt. Do you know why? Please tell me how to solve it

Thanks.